The 3 Inch OD 18 Inch Long Curved Aluminized Top Stack is a practical and versatile product that fits most makes and models. Made of durable aluminized steel, this top stack features a curved style and measures 3 inches in outer diameter and 18 inches in length. Sold individually, it offers a reliable solution for enhancing the performance of your vehicle's exhaust system. With its high-quality construction and compatibility with various models, this top stack is a beneficial addition that ensures optimal functionality and durability.